CN111788004A - Processing machine - Google Patents
Processing machine Download PDFInfo
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- CN111788004A CN111788004A CN201980016392.1A CN201980016392A CN111788004A CN 111788004 A CN111788004 A CN 111788004A CN 201980016392 A CN201980016392 A CN 201980016392A CN 111788004 A CN111788004 A CN 111788004A
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- unit
- section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/02—Transportable disintegrating plant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/02—Feeding devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/10—Separating or sorting of material, associated with crushing or disintegrating with separator arranged in discharge path of crushing or disintegrating zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
- B02C21/02—Transportable disintegrating plant
- B02C21/026—Transportable disintegrating plant self-propelled
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Combined Means For Separation Of Solids (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention relates to a processing machine, in particular a rock crusher (10), having a filling unit (20), which filling unit (20) can be filled with material to be crushed, wherein a screening unit (30) is arranged downstream of the filling unit (20) or in the filling unit (20) in the conveying direction, which screening unit (30) can be oscillated by means of a vibration exciter (38), wherein the screening unit (30) is used to feed a first part of the supplied material to the processing unit, in particular to the crusher unit (40), and to screen out another part of the supplied material in the screening unit (30), wherein a baffle (72) of a conveyor unit (70) adjustable about an axis of oscillation (74.1) is used to feed the screened-out part of the material onto a conveyor device, in particular a crusher discharge conveyor (60), in a bypass position, bypassing the processing unit, in particular the crusher unit (40), or for discharging the screened-out portion of the material in the conveying position from the working area of the processing machine by means of the conveyor device (50), wherein a bearing section (75.1) of a bearing (75) is coupled to the opposite side of the apron (72), which bearing section is rotatably mounted on the conveyor unit (70). It is proposed that at least one detachable clamping section (80.1, 80.2) is assigned to at least one bearing section (75.1), which clamping section acts in a clamping manner on the assigned bearing section (75.1) and fixes it in a pivoted position of the flap (72) relative to the conveyor unit (70), such that in the pivoted position the flap (72) is fixed against rotation relative to the conveyor unit (70).
Description
Technical Field
The invention relates to a processing machine, in particular a crusher, in particular a rock crusher for processing natural stone and for recovering demolition material, having a filling unit which can be filled with the material to be crushed. Downstream of the filling unit, a screening unit is arranged in the conveying direction, which screening unit can be oscillated by means of a vibration exciter. The screening unit is used to feed a first part of the supplied material into the crusher unit and to screen out another part in the screening unit. The flap of the conveyor unit, which is adjustable about the pivot axis, serves in the bypass position for feeding the screened portion of the material onto the conveyor device, in particular onto the crusher discharge conveyor, around the processing unit, in particular around the crusher unit, or in the conveying position for discharging the screened portion of the material from the working area of the processing machine by means of the conveyor device. Bearing sections of the bearings are coupled on opposite sides of the apron, which are rotatably mounted on the conveyor unit.
Background
Such crushers are used for crushing rock material and may be mobile or stationary. The filling unit is used to feed the material to be crushed into the machine. Excavators are commonly used for this purpose. Starting from the filling unit, the material to be crushed is conveyed to the sieving unit using conveyor means. The screening unit may have various designs. It is known that screening units form a simple conveyor chute design, which is provided with openings to achieve a screening effect (grate chute). Furthermore, prior art designs using sieve plates as a circular or elliptical vibrating system are known. In that design, one or more additional screens are mounted below the conveyor chute. A conveyor system is used for conveying rock material to the crusher unit. The crusher unit may be a jaw crusher, for example. During transport via the upstream unit (grate chute or screen), a portion of the supplied material is screened out, and the screened-out pieces are guided through the crusher unit in a bypass to prevent it from exerting pressure on the crusher. The screened cuttings can now be discharged via a crusher discharge conveyor or transported out of the working area of the machine using a separate conveyor system. Side belts are commonly used for this purpose. The user now has the option of selecting whether to operate in one mode or another. For this purpose, the user must set the adjustable flap of the conveyor to the bypass position or the conveying position.
During operation, it often occurs that fine, sieved debris accumulates on the baffle surfaces and gradually catches the baffles. This can result in the screened material no longer being discharged in the desired manner, but being dispersed into the machine in an uncontrolled manner. This problem can be solved, for example, by attaching the baffle to the sieving unit in such a way that it is excited together with the sieving unit by the vibration generator. Then, during operation, the baffle oscillates together with the sieving unit, which is advantageous in preventing fine material from accumulating on the surface of the baffle.
On the other hand, the flap must be mounted on the conveyor unit in an adjustable manner, in particular in a manner rotatable between an oscillation position (bypass position and conveying position). For this purpose, it is known to provide a bearing support on the conveyor unit, in which bearing support the bearing section of the flap is rotatably mounted. The bearings have a clearance in the range of one or more 1/10 mm. However, due to the vibrations of the screen and the sieving unit during operation, the bearings may wear out over time. Furthermore, it has proven difficult to secure the flap safely and reliably in one of the swing positions relative to the conveyor unit over a long period of time. In particular, oscillations and vibrations often cause the bolted connection used to lock the flap in one of the swing positions to loosen.
Disclosure of Invention
Based on the described prior art, the invention therefore solves the problem of increasing the usability and operational safety of processing machines, in particular with regard to adjustable baffles oscillating together with screening units.
In order to solve this problem, the processing machine based on the type mentioned above proposes to assign at least one detachable clamping section to at least one bearing section, which clamping section acts in a clamping manner on the assigned bearing section and to fix the bearing section in the pivoted position of the flap relative to the conveyor unit, so that the flap remains fixed against rotation in the pivoted position relative to the conveyor unit. At least one gripping section assigned to a bearing section is fixed against rotation on the conveyor unit, so that the gripping section or gripping sections assigned to a bearing section form a bearing support for the bearing section. In the case of a detached clamping section, at least one bearing section can be rotated therein from one pivot position to another pivot position. If the clamping section acts in a clamping manner on at least one bearing section, the bearing section is held stationary therein by means of a friction lock against co-rotation, so that the flap is fixed in the current swing position about the swing axis relative to the conveyor unit. The at least one bearing provided with the at least one clamping section is free from bearing play and any wear and tear of the bearing during operation of the processing machine is safely and reliably prevented. The clamping of the at least one bearing section by the at least one releasable clamping section preferably acts on the bearing section from the outside in the radial direction. However, it is also conceivable for the clamping to act on the bearing section from the inside in the radial direction. For this purpose, the bearing section may have, for example, a cylindrical opening in the interior, in which opening at least one clamping section is arranged.
Furthermore, a single clamping section, for example in the form of a clamping ring, can be assigned to a bearing section, the inner circumference of which can be reduced by means of suitable clamping means (for example in the form of at least one bolt) to produce a clamping effect on the bearing section for the inner circumference of the clamping section to surround the outer circumference of the bearing section in a clamping manner. Preferably, however, one bearing section is assigned to a plurality of clamping sections, preferably two clamping sections, for example each having the shape of a circular arc and together forming a clamping ring with an adjustable inner circumference. The inner circumference of the clamping ring can be reduced using suitable clamping means, for example in the form of bolts acting between adjacent clamping segments, and the clamping segments can be placed in a clamping manner around the outer circumference of the bearing segments.
The clamping force of the at least one clamping section acts on the assigned bearing section, preferably in a plane perpendicular to the pivot axis of the flap. It has been shown that such a clamping holder of the apron relative to the conveyor unit is less susceptible to oscillations and vibrations than conventional holders (e.g. using only bolted connections and form fits).
According to an advantageous development of the invention, it is proposed that the flap has a profile section, the central axis of which forms the pivot axis of the flap, and that the bearing section of the bearing is coupled to a longitudinal end of the profile section. The profile sections may penetrate through openings of longitudinal struts which form a support structure for stabilizing and/or supporting the baffle. The profile sections may be fixed, for example welded, to the longitudinal struts. The bearing section is welded to the end of the profile section or otherwise secured against rotation.
According to a preferred design variant of the invention, it can be provided that the adjustable conveyor unit has two spaced-apart fastening sections between which the flap is held in an oscillating manner, wherein the fastening sections are fastened to the screening unit. In particular, it may be provided that the fastening sections are attached to opposite side walls of the screening unit. A passage for the bearing section of the flap may be formed in the fastening section.
The fastening sections of the conveyor unit are preferably fastened to the opposite side walls of the screening unit by means of flange sections formed on the side walls of the screening unit on the one hand and on the fastening sections on the other hand. To attach the conveyor unit to the screening unit, the respective flange sections are simply brought into contact and attached to each other by means of suitable fasteners (e.g. bolts and nuts). The fastening section is flanged to the side wall of the screening unit, facilitating assembly and disassembly or replacement of the conveyor unit.
According to a further preferred embodiment, it is proposed that two clamping sections are assigned to at least one bearing section, wherein a first clamping section is attached to the outside of one of the fastening sections and is designed to support the bearing section. The other clamping section is arranged on the opposite side of the bearing section from the first clamping section and is detachably attached to the first clamping section such that the bearing section can be fixed in a swing position of the flap relative to the conveyor unit and the flap is fixed against rotation relative to the conveyor unit in the swing position. The clamping section assigned to the bearing section is preferably arranged on the outside of the fastening section in order to be easily accessible from the outside by the user, so that the clamping action of the clamping section can be quickly and easily produced or released on the assigned bearing section. The clamping sections, which are each assigned to one of the bearing sections, can be attached to one another in any desired detachable manner so as to surround the bearing sections arranged therebetween in a clamping manner. For example, it is conceivable to fasten the clamping sections to each other by means of bolts, so that the bearing sections are clamped between the clamping sections by tightening the bolts to fix the flap against rotation in the swung position relative to the conveyor unit.
Advantageously, the at least one bearing section has a mainly circular outer circumference and the at least one clamping section has an arc-shaped inner circumference. The inner circumference of the gripping section may also comprise a plurality of flat sections which, when arranged in rows, form an approximately arc-shaped inner circumference. The outer circumference of the bearing section is equally suitable. In this way, the clamping section can be attached in a clamping manner to a large area of the associated bearing section.
Of course, it is conceivable to attach and fix the flap in the desired pivoted position relative to the conveyor unit in another way than by the clamping section, for example by means of a form fit. In this case, it can additionally be provided that at least one locking section is attached to the baffle, which at least one locking section has at least one locking fitting in order to hold the baffle firmly on the vibratory screening unit in the respective pivoted position. The at least one locking segment is thus fixed to the shutter against rotation. In the bypass position and/or the transport position, the one or more locking segments can be fixed to the fixed fastening element by means of a form fit.
A preferred design of the invention is such that the apron has a central region, which the angular offset laterally adjoins on both sides transversely to the conveying direction, and the sieving unit has a conveyor chute which is formed at least partially from a soft component, for example a belt made of rubber or plastic, against which the underside of the apron rests in the bypass position. The soft parts can be used to easily shape the conveyor chute into a trough-like form. The conveyor chute collects the material to be transported in the center of the conveyor chute and feeds it to the baffle. The central area of the baffle and the laterally connected angular offset approximately replicate the channel geometry of the flaccid member and in this way create a distinct discharge of the screened material. Since the apron rests against the underside of the conveyor chute in the bypass position, the descending step results in a transition region between the conveyor chute and the apron in the conveying direction, i.e. there is no resistance to the conveying path. This is the simplest way to prevent material accumulation and sticking.
A particularly light and stable construction of the baffle results if it is intended to support the baffle using a support structure consisting of longitudinal and transverse struts.
A particularly preferred embodiment of the invention provides that the conveyor unit adjustable in the conveying direction has a conveying element downstream of the baffle, which conveying element is connected to the conveying region of the baffle in the bypass position of the baffle. This results in a space-saving design. In the bypass position, a sufficiently large transport distance can be bridged due to the combination of the flap and the conveying element. The movement of the flap from the bypass position to the delivery position requires only a small spatial oscillation. If the design is also arranged such that the conveying element is attached to the screening unit in such a way that it is excited by the vibration generator together with the screening unit and the screen, not only the screen but also the conveying element is reliably protected against jamming of the screened material. In order to reduce the number of parts and the cost and labor of assembly, it may also be provided that the conveying elements are attached to two fastening sections of the conveyor unit and kept spaced apart from each other.
If it is intended to support the conveying element using a support structure formed by one or more support struts (longitudinal support struts and transverse support struts), a particularly light and stable construction of the conveying element results.
It is conceivable that the baffle and/or the conveying element have a sheet metal section, the underside of which is preferably supported by a support structure. Alternatively, it is conceivable for the baffle and/or the conveying element to have a material section made of a soft material, in particular rubber or plastic, the underside of which is preferably supported by the support structure. The material section of soft material has the particular advantage that, due to the oscillation and vibration of the conveyor unit and the co-oscillating baffle or conveying element, it can oscillate particularly strongly and abruptly, which effectively prevents fine screening components from accumulating on the surface of the baffle or conveying element. The soft material section may rest directly on the support structure or on a sheet metal section applied thereto. As an alternative or in addition to the support structure, it is conceivable for at least one support element to be present in or on the material section. The support element may be used to bring the baffle or conveying element into a desired shape and to maintain that shape. In particular, the support structures and/or support elements in the baffles or conveying elements may be used to shape the central region and the angularly offset portions laterally adjacent thereto such that they mimic the trough-like geometry of the conveyor chute.
A further preferred embodiment of the invention provides that the baffle and/or the conveying element have a central region which is laterally adjoined on both sides by an angular offset transversely to the conveying direction, wherein the material section of the flaccid material of the baffle or the conveying element is clamped in the conveying direction in the form of a drum cover to the outside of the angular offset. This allows the central region of the baffle to oscillate particularly strongly and abruptly, which effectively prevents fine screened fraction from accumulating on the surface of the baffle or conveying element.
Drawings
The invention is explained in more detail below on the basis of embodiments shown in the drawings. In the figure:
fig. 1 shows a side view of a schematic of a mobile crusher;
figure 2 shows a side view and a cross-sectional view of a screening unit of a crusher;
FIG. 3 shows the illustration according to FIG. 2 in a different operating position;
fig. 4 shows a bottom view of the adjustable conveyor unit in a perspective view;
fig. 5 and 6 show the bearings of the adjustable conveyor unit as shown in fig. 4;
fig. 7 shows a top view of the adjustable conveyor unit according to fig. 4 in a perspective view;
FIG. 8 shows the adjustable conveyor unit of FIG. 7 but in a different operating position;
fig. 9 shows a longitudinal section of the conveyor unit according to fig. 4, 7 and 8; and
fig. 10 shows a bottom view of the conveyor unit according to fig. 4, 7 and 8 in a perspective view.
Detailed Description
Fig. 1 shows a mobile processing machine 10, which is typically used for breaking rock or other mineral material. The mobile crusher 10 has a machine chassis supported by two tracks.
The crusher 10 is equipped with a filling unit 20, which is typically designed as a hopper-shaped feed unit. The filling unit 20 may be used to fill the crusher 10 with material to be crushed. The filling unit 20 has at the bottom conveyor means, in particular a grate chute, or in the present embodiment a conveyor belt. Which conveyor means are used to feed the material to be crushed to the sieving unit 30. A vibration exciter 38 is assigned to the screening unit 30, which can be designed as an eccentric drive. The vibration exciter 38 may be used to oscillate the screening unit 30 to subject the conveyed material to the screening process. The vibratory exciter 38 not only oscillates the screening units 30 for screening purposes, but in combination with the corresponding inclined arrangement of the screening decks achieves a transport effect similar to a vibrating conveyor.
As shown in fig. 1, the screening unit 30 feeds unscreened coarse rock fragments to a crusher unit 40. The crusher unit 40 is designed to have the shape of a jaw crusher. The crusher unit 40 has two crushing jaws which form a converging gap. The material to be crushed is fed into the gap region. The crusher unit 40 has a fixed crushing jaw and a movable crushing jaw. The eccentric drive 41 drives the moving crushing jaw. As shown in fig. 1, coarse rock material is crushed in the converging gap. On the bottom side, the crushed and broken away rock material leaves the crusher unit 40 due to gravity and falls onto the crusher discharge conveyor 60. The crusher discharge conveyor 60 is designed as a continuously circulating conveyor belt. The crusher discharge conveyor 60 discharges crushed rock material and deposits it beside the crusher 10.
As shown, material from the filling unit 20 passes through a screen 32 (e.g., a top screen deck) in the screening unit 30. In the process, a portion of the rock material is separated out. These are due to their size and not necessarily the rock pieces that have to be sent through the crusher unit 40, since they already have a size that approximately corresponds to the size of the rock that is crushed by the crusher unit 40. As illustrated, a portion of the separated rock fragments are fed directly to the crusher discharge conveyor 60 in a bypass through the crusher unit 40. Now there is another screening deck 34 in the screening unit 30 below the screen 32. The screen deck 34 screens out a finer fraction of the fragments from the material that has already been screened. It is now partially desirable to separate off this particularly fine partial fragment, for which purpose a discharge belt 50 is used. As shown in fig. 1, a fine fraction of the pieces is fed onto the continuously rotating discharge belt 50, conveyed out of the working area of the crusher 10 and deposited. It is not always desirable to discharge fine sub-fragments. Rather, the machine operator wishes to have the option of feeding it directly onto the crusher discharge conveyor 60, either separately from or together with coarser screening material. An adjustable conveyor unit 70 is used for this purpose.
The design, arrangement and function of the conveyor unit 70 is described in more detail below. As shown in fig. 2, the sieving unit 30 has two side walls 31 spaced apart from each other. A transport area for rock material is formed between the two side walls 31. The figure shows that at least one of the side walls 31 has a holder 33 for a vibration exciter 38. Which can be used to introduce the vibrational energy of the vibration exciter 38 into the side wall 31. Different arrangements of the vibration exciter 38 are also conceivable, however, in another arrangement it may be provided to introduce vibration energy from the vibration exciter 38 into the sieving unit 30 such that the sieving unit 30 vibrates with the frequency and amplitude of the vibration exciter 38.
The screen 32 is held in the upper part of the screening unit 30 between the two side walls 31. The screen deck 34 is located below the screen 32. There is a transport zone between the screen 32 and the screen deck 34. A conveying area is defined above the screen 32 by means of two side walls 31 and the screen 32. There is another conveying area below the screen deck 34. The conveyor chute 36 defines this conveying area at the bottom. The conveyor chute 36 may be designed as a soft component, e.g. made of rubber or plastic, wherein the conveyor chute 36 extends longitudinally from the left side of the screening unit 30 to the adjustable conveyor unit 70. As further shown in fig. 2, the screen deck 34 may extend through a discharge surface 35. In this case the discharge surface 35 is connected to the screen deck 34 in the conveying direction in the form of descending steps to prevent obstacles in the conveying direction.
The adjustable transport unit 70 has a flap 72 and a transport element 76. The flap 72 can be pivoted about a pivot axis 74.1. Fig. 2 shows the operating position in which the flap 72 is in the pivoted transport position. In this position, fine fragments screened by the screen deck 34 are fed to the discharge conveyor 50 via the baffle 72. Fig. 3 shows another operating position of the flapper 72, which represents the bypass position. In this swinging position, screened fine rock material from the conveyor 36 is fed via the baffle 72 to the conveyor element 76. The fine rock material then falls from the conveyor elements 76 onto the crusher discharge conveyor 60.
As fig. 2 and 3 further show, the side wall 31 has a bolt hole 37 in the region of the adjustable conveyor unit 70. These bolt holes 37 are used for fastening the adjustable conveyor unit 70 to the side wall 31 by means of fastening bolts 71.6. In this way, the adjustable conveyor unit 70 may be attached to the sieving unit 30. The conveyor unit 70 is preferably flanged to the screening unit 30 using flange sections, as explained in more detail below.
The structure of the adjustable conveyor unit 70 can be seen more clearly from the illustrations in fig. 4 to 10. As shown in these figures, the adjustable conveyor unit 70 has two lateral mounting sections 71, which lateral mounting sections 71 can be designed as sheet metal sections. The baffle 72 and the conveyor element 76 are both located between the two fastening sections 71. In the shown example, the conveyor unit 70 is flanged to the sieving unit 30. For this purpose, flange sections 71.7, 71.8 are formed on opposite side walls 31 of the screening unit 30 and on the fastening section 71 of the conveyor unit 70. The flange sections 71.7, 71.8 are shown in detail in fig. 5 and 6. The fastening sections 71 are each formed in two parts, wherein a first part of the fastening section 71 is fixed to one of the side walls 31 by means of fixing bolts 71.6, on which first part a first flange section 71.7 is formed, and a second part of the fastening section 71 has a through-hole 71.2 for a bearing section 75.1 of the baffle 72, on which second part a second flange section 71.8 is formed, as explained in detail below. In order to fix the adjustable conveyor unit 70, it is simply held that its flange section 71.8 abuts against the flange section 71.7 from below, which flange section 71.7 is assigned to the opposite side wall 31, and the flange sections 71.7, 71.8 are attached to each other by means of the fastening bolts 71.9 and the mating nuts 71.10. The flanged connection of the conveyor unit 70 to the screening unit 30 facilitates assembly and disassembly or allows for a very easy replacement of the conveyor unit 70.
The baffle 72 may be formed as a stamped and bent part from a sheet metal section 72.4. It has a central region 72.1 to which angular offsets 72.2 are connected on both sides. Away from the central region 72.1, the angular offset 72.2 has a chamfer 72.3. The laterally positioned angular offset 72.2 and the central area 72.1 serve to simulate the trough geometry of the conveyor chute 36. The support structure 73 is located below the baffle 72. The support structure 73 has longitudinal struts 73.1 and transverse struts 73.2, 73.3 connected to each other. The support structure 73 supports the baffle 72 in such a way as to provide a stable, lightweight construction. A material section 72.5 made of a soft material, for example in the form of a sheet made of rubber or plastic, can at least partially rest on the sheet metal section 72.4 of the central area 72.1 and the angular offset 72.2 on both sides. This embodiment is shown, for example, in fig. 5 and 7-10. The material section 72.5 can be clamped in the manner of a drum cover on the outside of the chamfer 72.3, so that when the conveyor unit 70 is vibrated together with the screening unit 30, the material section 72.5, in particular the material section 72.5 in the region of the central region 72.1 and the angular offset 72.2, can be made to oscillate particularly strongly in order to prevent the material conveyed thereon from agglomerating and accumulating. However, in an alternative embodiment, it is also conceivable for the material section 72.5 made of a soft material to replace the sheet metal section 72.4 and to rest directly on the support structure 73 of the baffle 72. In this case, the material section 72.5 is also clamped and held externally at the chamfer 72.3 and rests on the support structure 73 only in the region of the central region 72.1 and the angular offset 72.2.
As an alternative or in addition to the support structure 73, it is conceivable for at least one support element (not shown) to be present in or on the material section 72.5. The support element may for example be made of plastic or metal. The support elements may be used to bring the baffle 72 into a desired shape and maintain that shape. In particular, the support structure 73 and/or the support elements at the baffle 72 may be used to shape the central region 72.1 and the angularly offset portions 72.2 laterally adjoining the central region such that they mimic the trough-like geometry of the conveyor chute 36.
The longitudinal strut 73.1 can have an opening through which the profile section 74 extends. The profile section 74 can be fixed, for example welded, to the longitudinal strut 73.1. The center line of the profile section 74 forms the pivot axis 74.1 of the flap 72. As shown in fig. 5, at the longitudinal ends of the profile sections 74, bearing sections 75.1 of the bearings 75 are attached to the profile sections 74. As shown, the bearing section 75.1 may be formed by a circular disc. Bearing section 75.1 is welded to the end of profile section 74 or fixed to the end of profile section 74, preventing rotation in another way. The locking sections 77.1, 77.2 with the locking fittings 77.3 can be attached to the bearing section 75.1 or the support structure 73 or the baffle 72. The locking segments 77.1, 77.2 are fixed to the shutter 72 against rotation. The bearing sections 75.1 extend through the fastening section 71 via the through-holes 72.1, resulting in their arrangement outside the fastening section. For example, in this case the through-hole 72.1 is designed as a circular cut-out from the fastening section 71 (see fig. 6). The assignment of the bearing section 75.1 to the fastening section 71 is carried out using the clamping sections 80.1, 80.2. Bearing sections 75.1 can be inserted into these clamping sections 80.1, 80.2 to form a pivot bearing.
In the example shown, two clamping sections 80.1, 80.2 are assigned to each of the bearing sections 75.1. However, it is also possible to assign a clamping section to only one bearing section 75.1, or to assign only one clamping section to each bearing section 75.1, which then encompasses a larger circumference of the bearing section 75.1 than shown in fig. 6. The bolt 80.3 and the nut 80.4 serve to hold the clamping sections 80.1, 80.2 together. If the bolts 80.3 or the nuts 80.4 are loosened to such an extent that the clamping sections 80.1, 80.2 are held together, but their inner circumferences are not clamped against the outer circumference of the bearing section 75.1, the clamping sections 80.1, 80.2 are in the so-called bearing position and form a bearing support for the bearing section 75.1. In the bearing position of the clamping sections 80.1, 80.2, the flap 72 can be rotated about the pivot axis 74.1 into one of the pivot positions. By tightening the screw 80.3 or the nut 80.4, the clamping sections 80.1, 80.2 reach a holding position in which the inner circumference formed by the clamping sections 80.1, 80.2 is reduced, so that the clamping sections 80.1, 80.2 have a clamping effect on the bearing section 75.1 and fix the flap 72 in the pivoted position relative to the conveyor unit 70. The clamping sections 80.1, 80.2 thus form a bearing support with an adjustable bearing gap. In particular, the bearing clearance in the retaining position may be reduced to a minimum, such that any wear and tear of the bearing 75 during operation of the crusher 10 is not possible for all intents and purposes.
In order to prevent any undesired adjustment of the flap 72 in the respective pivoted position, an additional holding device can be provided for the flap 72. Additional holding means are realized, for example, by using a latching element 71.5, which latching element 71.5 engages with the locking fitting 77.3 in the respective pivoted position. Particularly advantageously, provision can be made for the positioning element 71.5 to be designed as a fixing bolt which is inserted through the bolt holes 71.3, 71.4 of the fastening section 71 and which is bolted in the locking fitting 77.3, the locking fitting 77.3 being designed as a threaded fitting. In particular, one or more, preferably two, positioning elements 71.5 can be provided per pivot position to ensure the distribution of the flap 72 to the fastening section 71.
In the embodiment of the invention shown in fig. 5 and 6, by means of the detachable clamping sections 80.1, 80.2, the bearing section 75.1 can be fixed in the pivoted position of the flap 72 relative to the conveyor unit 70 or the fastening section 71, so that the flap 72 is fixed against rotation in the pivoted position relative to the conveyor unit 70. In this case, an additional holder of the bearing section 75.1 to the locking fitting 77.3 and the positioning element 71.5 can be dispensed with by means of the locking sections 77.1, 77.2. It is proposed in particular that each bearing section 75.1 is assigned two clamping sections 80.1, 80.2, wherein a first clamping section 80.1 of the bearing 75 is fastened to one of the fastening sections 71 and is designed to hold the bearing section 75.1, and the other clamping section 80.2 is arranged on the side of the bearing section 75.1 opposite the first clamping section 80.1 and can be fastened detachably to the first clamping section 75.1, so that the bearing section 75.1 can be clamped between the two clamping sections 80.1, 80.2 in its retaining position. In this way, in the swing position of the flap 72 relative to the conveyor unit 70, the bearing section 75.1 can be fixed, and in the swing position the flap 72 is fixed against rotation relative to the fixed section 71. Such a clamping holder of the baffle relative to the fastening section 71 has proven to be particularly suitable for large vibrations occurring during operation of the crusher 10.
The first clamping section 80.1 is attached to the fastening section 71, for example by welding. The second clamping section 80.2 can be detachably fastened to the first clamping section 80.1, for example by means of bolts 80.3. The bolt 80.3 can be passed through matching openings in the clamping sections 80.1, 80.2 and secured using a nut 80.4. By tightening the bolts 80.3 or the nuts 80.4, the distance between the clamping sections 80.1, 80.2 can be reduced in the manner of a bracket or clamp. In this way, the bearing section 75.1 can be clamped between the clamping sections 80.1, 80.2. It is particularly preferred that the bearing section 75.1 has a substantially circular outer circumference and the clamping sections 80.1, 80.2 each have an arc-shaped inner circumference. The inner circumference of the holding sections 80.1, 80.2 may also comprise a plurality of flat sections which, when arranged in rows, form an approximately arc-shaped inner circumference. In this way, the clamping sections 80.1, 80.2 can rest on the bearing section 75.1 over a large area.
As fig. 4, 5 and 7 to 10 show, at least one of the bearing sections 75.1 has an actuating element 75.2, which actuating element 75.2 is fixed against rotation at the bearing section 75.1 and is therefore fixed to the flap 72. The actuating element 75.2 may be formed by a hexagonal head. The actuating element 75.2 can be contacted by a tool. The tool can be used to adjust the actuating member 75.2, and thus the flap 72, to oscillate between the bypass position and the delivery position.
A conveyor element 76 is also attached to the two mounting sections 71. The conveyor element 76 can be made as a stamped and bent part from a sheet metal section 78.8. It has a central region 76.1, to which central region 76.1 angular offset 76.2 is connected on both sides. Away from the central region 76.1, the chamfer 76.3 curves away from the angular offset 76.2. The chamfer 76.3 has an attachment point 76.6 as shown in fig. 4. The conveyor element 76 can then be connected to the fastening section 71 using suitable fastening elements, such as bolts 76.7. The conveyor element 76 thus serves to fix the two fastening sections 71 at a desired distance from one another. The central region 76.1 and the two angular offsets 76.2 of the conveying element 76 simulate the trough geometry of the baffle 72 or the conveyor chute 36.
Fig. 4, 9 and 10 further illustrate the structure of the conveying element 76. As the figure shows, at least one support strut 76.4 and longitudinal strut 76.5 are attached to the underside of the conveyor element 76. These struts 76.4, 76.5 form a support structure for the conveyor element 76, which forms a stable, lightweight design. The support strut 76.4 has at its longitudinal ends angled fastening sections 76.6 as attachment points. Bolts 76.7 may be inserted through these fastening sections 76.6 to connect the support struts 76.4 to the fastening sections 71. The support struts 76.4 then serve on the one hand as stable supports for the conveyor elements 76 and on the other hand in order to keep the fastening sections 71 at a defined distance from one another.
A material section 76.9 made of a soft material (for example, in the form of a sheet made of rubber or plastic) can rest at least partially on the central region 76.1 and the sheet sections 76.8 of the angular offsets 76.2 on both sides. This embodiment is shown, for example, in fig. 9 and 10. The material section 76.9 can be clamped in the manner of a drum cover on the outside of the chamfer 76.3, so that the material section 76.9, in particular the material section 76.9 in the region of the central region 76.1 and the angular offset 76.2, can be made to oscillate particularly strongly, in particular when the conveyor unit 70 is vibrated together with the screening unit 30, in order to prevent the material conveyed thereon from caking and accumulating. However, in an alternative embodiment, it is also conceivable for the material section 76.9 made of a soft material to replace the sheet metal section 76.8 and rest directly on the support structure 76.4, 76.5 of the conveyor element 76. In this case, the sheet 76.9 is also clamped and held externally at the chamfer 76.3 and rests on the support structure 76.4, 76.5 only in the central region 76.1 and in the region of the angular offset 76.2.
As an alternative or in addition to the support structures 76.4, 76.5, it is also conceivable for at least one support element (not shown) to be present in or on the material section 76.9. The support element may be made of plastic or metal, for example. The support elements may be used to bring the conveyor element 76 into a desired shape and maintain that shape. In particular, the support structures 76.4, 76.5 and/or the support elements at the conveyor element 76 may be used to shape the central region 76.1 and the angularly offset portions 76.2 laterally adjoining it such that they mimic the trough-like geometry of the baffle 72 and/or the conveyor chute 36.
The adjustable conveyor unit 70 shown in fig. 4-10 (including its baffle 72 and conveyor element 76) may be manufactured as a pre-assembled unit. Which can then be easily mounted on the sieving unit 30. Assembly is particularly easy if it is provided that two fastening sections 71 (as described above) are connected to the side wall 31 of the screening unit 30 by means of the flange sections 71.7, 71.8. For this purpose it can be provided that the first part of the fastening section 71 has bolt holes. These may be aligned with the bolt holes 37 of the side walls 31. The fastening bolts 71.6 passing through the bolt holes 37 can then be used to establish a firm and stable fastening of the first part of the fastening section 71 of the adjustable conveyor unit 70 to the side wall 31 of the screening unit 30. Alternatively, it is also conceivable that the flange section 71.7 is welded to the outside of the side wall 31 or fixed in some other way.
The mode of operation of the adjustable conveyor unit 70 is described in more detail below. Fig. 3, 4, 7, 9 and 10 show the bypass position, as explained in more detail above. The top of the baffle 72 rests against the bottom of the conveyor chute 36. Due to the angled geometry of the baffle 72, the baffle 72 mimics the curved shape of the conveyor chute 36. In this way, a smooth material transport can be achieved. This is also supported by placing the baffle 72 against the underside of the conveyor chute 36. In this way, a descending step is formed in the conveying direction.
In the bypass position, the end of the baffle 72 facing away from the conveyor chute 36 is placed above the conveyor element 76, as shown in fig. 3, 7 and 9. In this way, a descending step is also formed in the conveying direction, preventing jamming from occurring. If the flap 72 is now rotated from the bypass position shown in fig. 3 to the delivery position (see fig. 2 and 8), the anti-rotation lock on the flap 72 must be released. For this purpose, the positioning element 71.5 designed as a fixing bolt is loosened from the locking fitting 77.3 designed as a threaded fitting and removed from the bolt holes 71.3, 71.4 of the fastening section 71. Furthermore, the connection between the clamping sections 80.1, 80.2 is released to release the clamping support of the bearing section 75.1. A suitable tool is then engaged with the actuating element 75.2. The flap 72 can then be rotated until it reaches the swing position shown in fig. 2 and 8. In this case, the loose clamping sections 80.1, 80.2 serve as bearing supports. The conveying path between the conveyor chute 36 and the conveyor element 76 is then interrupted. The material flow from the conveyor chute 36 is now directed directly to the discharge belt 50. The baffles 72 obstruct the path between the conveyor chute 36 and the conveying element 76 and also project somewhat beyond these components for this purpose. This reliably prevents material from entering the area of the crusher discharge conveyor 60. In this new pivoted position, the blocking plate 72 can be secured again against unintentional pivoting by means of the clamping sections 80.1, 80.2 or an additional holding device (for example in the form of a positioning element 71.5).
Claims (15)
1. A processing machine, in particular a crusher (10), in particular a rock crusher, having a filling unit (20), which filling unit (20) can be filled with material to be crushed, wherein a screening unit (30) is arranged downstream of the filling unit (20) or in the filling unit (20) in a conveying direction, wherein the screening unit (30) can be oscillated by means of a vibration exciter (38), wherein the screening unit (30) is used for feeding a first part of the supplied material to the processing unit, in particular to the crusher unit (40), and for screening out another part of the supplied material in the screening unit (30), wherein a baffle (72) of a conveyor unit (70) which can be adjusted about an axis of oscillation (74.1) is used for feeding the screened-out part of the material in a bypass position onto a conveyor device, in particular onto a crusher discharge conveyor (60), bypassing the processing unit, in particular bypassing the crusher unit (40), or for discharging the screened-out portion of the material from the working area of the processing machine in the conveying position by means of the conveyor device (50),
wherein a bearing section (75.1) of a bearing (75) is coupled to the opposite side of the flap (72), said bearing section being rotatably mounted on the conveyor unit (70);
it is characterized in that the preparation method is characterized in that,
at least one detachable clamping section (80.1, 80.2) is assigned to at least one bearing section (75.1), which clamping section acts in a clamping manner on the assigned bearing section (75.1) and fixes the bearing section (75.1) in a pivoted position of the flap (72) relative to the conveyor unit (70), such that in the pivoted position the flap (72) is fixed against rotation relative to the conveyor unit (70).
2. The processing machine as claimed in claim 1, characterised in that the stop plate (72) has a profile section (74), the central axis of which profile section (74) forms the axis of oscillation (74.1), and in that a bearing section (75.1) of the bearing (75) is coupled to a longitudinal end of the profile section.
3. The processing machine as claimed in claim 1 or 2, characterised in that the adjustable conveyor unit (70) has two spaced-apart fastening sections (71), in each of which fastening sections (71) a channel (71.2) for one of the bearing sections (75.1) is formed, so that the apron (72) is held between the fastening sections (71) in a manner swinging about a swinging axis (74.1), wherein the fastening sections (71) are fastened to the sieving unit (30).
4. The processing machine as claimed in claim 3, characterised in that the fastening sections (71) are flange-connected to the opposite side walls (31) of the screening unit (30) via flange sections (71.7, 71.8), the flange sections (71.7, 71.8) being formed on the side walls (31) and the fastening sections (71).
5. The processing machine according to claim 3 or 4, characterised in that two clamping sections (80.1, 80.2) are assigned to at least one bearing section (75.1), wherein a first clamping section (80.1) is fastened to one of the fastening sections (71) and is designed to hold the bearing section (75.1), and the other clamping section (80.2) is arranged on the side of the bearing section (75.1) opposite the first clamping section (80.1) and is detachably fastened to the first clamping section (80.1), so that the bearing section (75.1) can be fixed in the pivoted position of the flap (72) relative to the conveyor unit (70) and the flap (72) is held fixed in the pivoted position against rotation relative to the conveyor unit (70).
6. The processing machine as claimed in claim 5, characterized in that the clamping segments (80.1, 80.2) are fastened to one another by means of bolts (80.3), the clamping segments (80.1, 80.2) being assigned to one of the bearing segments (75.1) each, and the bearing segment (75.1) being held between the clamping segments (80.1, 80.2) by tightening the bolts (80.3), so that the flap (72) is held fixed against rotation relative to the conveyor unit (70) in the pivoted position.
7. The processing machine as claimed in any of claims 1 to 6, characterised in that at least one bearing section (75.1) has a substantially circular outer circumference and at least one clamping section (80.1, 80.2) has an arcuate inner circumference.
8. The processing machine as claimed in any of claims 1 to 7, characterised in that the apron (72) has a central region (72.1), the angular offset (72.2) laterally adjoins the central region (72.1) on both sides transversely to the conveying direction, and the screening unit (30) has a conveyor chute (36), which conveyor chute (36) is formed at least partially by a soft component, for example a rubber belt, against which conveyor chute (36) the underside of the apron (72) rests in the bypass position.
9. The processing machine according to any one of claims 1 to 8, characterised in that the apron (72) is supported by means of a support structure (73), the support structure (73) being formed by longitudinal struts (73.1) and transverse struts (73.2, 73.3).
10. The processing machine as claimed in any of claims 1 to 9, characterised in that the conveyor unit (70) adjustable in the conveying direction has a conveying element (76) behind the flap (72), which conveying element (76) is connected to the conveying area of the flap (72) in the bypass position of the flap (72).
11. The processing machine according to claim 10, characterised in that the conveying element (76) is supported by a support structure formed by one or more support uprights, in particular a transverse upright (76.4) and a longitudinal upright (76.5).
12. The processing machine as claimed in claim 9 or 11, characterised in that the apron (72) and/or the conveying element (76) have a sheet metal section (72.4; 76.8), the underside of which (72.4; 76.8) is preferably supported by a support structure (73; 73.1, 73.2, 73.3; 76.4, 76.5).
13. The processing machine as claimed in claim 9 or 11, characterized in that the apron (72) and/or the conveying element (76) have material sections (72.5; 76.9), the material sections (72.5; 76.9) being made of a soft material, in particular rubber or plastic, the underside of the material sections (72.5; 76.9) preferably being supported by a support structure (73; 73.1, 73.2, 73.3; 76.4, 76.5), and/or at least one support element being present in or on the material sections (72.5; 76.9).
14. The processing machine as claimed in claim 12, characterized in that the apron (72) and/or the conveying element (76) have material sections (72.5; 76.9), the material sections (72.5; 76.9) being made of a soft material, in particular rubber or plastic, the underside of the material sections (72.5; 76.9) preferably being supported by sheet metal sections (72.4; 76.8).
15. The processing machine as claimed in any of claims 1 to 14, characterised in that one or more locking segments (77.1, 77.2) with at least one locking fitting (77.3) are coupled to the flap (72), which locking segments can be fixed to a fixed fastening element (71.3) in the bypass position and/or the transport position.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018106177.3 | 2018-03-16 | ||
DE102018106177.3A DE102018106177A1 (en) | 2018-03-16 | 2018-03-16 | processing plant |
PCT/EP2019/051707 WO2019174802A1 (en) | 2018-03-16 | 2019-01-24 | Processing system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN111788004A true CN111788004A (en) | 2020-10-16 |
Family
ID=65351998
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201980016392.1A Pending CN111788004A (en) | 2018-03-16 | 2019-01-24 | Processing machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US11325132B2 (en) |
EP (1) | EP3565670B1 (en) |
CN (1) | CN111788004A (en) |
DE (1) | DE102018106177A1 (en) |
WO (1) | WO2019174802A1 (en) |
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- 2019-01-24 US US16/971,458 patent/US11325132B2/en active Active
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Also Published As
Publication number | Publication date |
---|---|
US20210031209A1 (en) | 2021-02-04 |
US11325132B2 (en) | 2022-05-10 |
DE102018106177A1 (en) | 2019-09-19 |
EP3565670B1 (en) | 2020-02-12 |
WO2019174802A1 (en) | 2019-09-19 |
EP3565670A1 (en) | 2019-11-13 |
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